This paper considers the use of a squirrel cage
induction generator for a direct-drive wind turbine. Advantages
of this topology include a simple/rugged construction, and no
need for permanent magnets. A major focus of this paper is the
choice of an appropriate pole number. An iterative, analytical
design process is employed to create generators of different pole
numbers for comparison, with static 2-D finite element analysis
used for verification. It is shown that increasing the pole number
has the effects of reducing the required core material, reducing
the power factor, increasing the leakage reactance, and increasing
the efficiency.

Original language

English

Title of host publication

Proceedings of IEEE International Electric Machines and Drives Conference